2019 Aprilia SX 125 specifications

Full technical specification for the 2019 Aprilia SX 125 — engine, transmission, chassis, dimensions and performance data. See the ones for sale below, or compare other years.

Engine and transmission

Displacement	124.20 ccm (7.58 cubic inches)
Engine Details	Single cylinder, four-stroke
Power	15.00 HP (10.9 kW)) @ 10500 RPM
Torque	10.90 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 8250 RPM
Compression	12.5:1
Bore X Stroke	58.0 x 47.0 mm (2.3 x 1.9 inches)
Valves Per Cylinder	4
Fuel System	Injection. Magneti Marelli M3G ø 32mm ECU
Ignition	Electronic with CDI capacity discharge
Lubrication System	Wet sump
Cooling System	Liquid
Gearbox	6-speed
Transmission Type Final Drive	Chain
Clutch	Multi-plate in oil bath.
Driveline	Primary drive: Gearbox: 63/19 (3.31). Final drive: Chain: 17/40 (2.35).
Emission Details	Euro 4
Engine Type	Single cylinder, four-stroke
Fuel Consumption	2.60 litres/100 km (38.5 km/l or 90.47 mpg)
Greenhouse Gases	60.3 CO2 g/km. (CO2 - Carbon dioxide emission)
Top Speed	120.0 km/h (74.6 mph)

Chassis, suspension, brakes & wheels

Rear Wheel Travel	265 mm (10.4 inches)
Rear Tyre	150/60-17
Wheels	Aluminium spoked wheel.
Frame Type	Steel perimeter
Front Brakes	Single disc. Floating calliper
Front Brakes Diameter	300 mm (11.8 inches)
Front Suspension	Ø 41 mm telescopic upside down fork
Front Tyre	100/80-17
Front Wheel Travel	240 mm (9.4 inches)
Rear Brakes	Single disc. Floating calliper
Rear Brakes Diameter	220 mm (8.7 inches)
Rear Suspension	Hydraulic monoshock absorber with progressive link system.

Measures and capacities

Fuel Capacity	10.00 litres (2.64 gallons)
Dry Weight	115.0 kg (253.5 pounds)
Seat Height	880 mm (34.6 inches) If adjustable, lowest setting.
Weight Incl Oil Gas Etc	120.0 kg (264.6 pounds)
Overall Height	1,390 mm (54.7 inches)
Overall Length	2,165 mm (85.2 inches)
Overall Width	850 mm (33.5 inches)
Reserve Fuel Capacity	1.30 litres (0.34 gallons)
Power Weight Ratio	0.1865 HP/kg